CN219422506U

CN219422506U - Cushion and nursing seat

Info

Publication number: CN219422506U
Application number: CN202290000096.XU
Authority: CN
Inventors: 白桂芬
Original assignee: Qingdao Centaury Design Co Ltd
Current assignee: Qingdao Centaury Design Co Ltd
Priority date: 2021-08-24
Filing date: 2022-01-19
Publication date: 2023-07-28
Anticipated expiration: 2032-01-19
Also published as: JP2024506113A; EP4115769A4; US20230061321A1; EP4115769A1; EP4115769B1; EP4115770A4; US11627807B2; WO2022156690A1; WO2022148486A1; US11707166B2; US20230062269A1; CN219109050U; EP4115770A1; EP4115770B1

Abstract

A cushion and a nursing seat. The cushion comprises: the seat surface (4031) and a through hole (4032) formed in the middle of the seat surface (4031), a supporting structure (4033) is arranged at the lower part of the through hole (4032), and the supporting structure (4033) and the seat surface (4031) form a containing space (4034); the collection box (8) is detachably accommodated in the accommodating space (4034). The collecting box (8) is arranged at the bottom of the cushion, and can be used in the nursing field, and meanwhile, the collecting box (8) is detachably connected with the cushion, so that the cushion is convenient to process and clean.

Description

Cushion and nursing seat

The application requires that China patent office, application number 202122010236.1 and expandable seat are filed on 24 th 08 th 2021; application number 202122010085.X, entitled "quick connect structure, seat with such structure and nursing seat"; the priority of chinese patent application No. 202122004549.6 entitled "lumbar support for back rest and seat", the entire contents of which are incorporated herein by reference.

Technical Field

The application relates to the technical field of household seats and nursing seats, in particular to a seat cushion and a nursing seat.

Background

The prior art has technical stasis in the nursing field, and the nursing seat in the prior art is easy to break and damage by adopting an injection molding process; the support structure lacks effective stable support for the spine or upper body support structure of the special needs; particularly for incontinent persons, there is no effective solution for the faecal collection vessel.

Disclosure of Invention

Aiming at the defects in the prior art, the application provides a cushion and a nursing seat.

In order to solve the technical problem, the technical scheme adopted in the application is as follows:

in one aspect, the present application provides a seat cushion comprising:

a seating surface;

the through hole is formed in the middle of the seat surface;

a supporting structure arranged at the lower part of the through hole, wherein the supporting structure and the seat form an accommodating space;

a collection box detachably accommodated in the accommodation space;

wherein, the supporting structure is provided with protruding limit rails at two sides of the inner part of the accommodating space; correspondingly, grooves matched with the protruding limiting rails are formed in the positions, corresponding to the protruding limiting rails, on the two sides of the collecting box; the collecting box is guided to be placed in the accommodating space through the matching of the groove and the protruding limiting rail.

In some embodiments of the present application, the collecting box is configured as an upper cover structure and a lower box structure formed by cutting after one-time blow molding, and the upper cover structure and the lower box structure are buckled and connected.

In some embodiments of the present application, the upper cover structure of the collection box, when mounted on the seating surface, will ensure comfort in use with a consistent seating surface.

In some embodiments of the present application, the upper portions of both sides of the lower case structure have wave-preventing grooves protruding toward the inside of the collecting case.

Another aspect of the present application provides a nursing seat comprising a seat cushion as claimed in any one of the preceding claims, further comprising a backrest and/or armrests connected to the seat cushion.

In some embodiments of the present application, the backrest and/or the armrest are detachably connected to the seat cushion through a connection structure, and the connection structure includes a mounting hole structure provided on the seat cushion and a mounting structure provided on the backrest and the armrest; wherein:

the mounting hole structure includes:

the plug hole is arranged on the cushion and extends towards the interior of the cushion;

the step surface is formed on a hole wall of the plug hole and divides the hole wall into a first hole wall and a second hole wall by limiting the step surface; the second hole wall is on the same side as the step surface and enlarges the size of the plugging hole relative to the first hole wall;

the two limit clamping points are formed on two sides of the second hole wall, oppositely protrude towards the direction parallel to the step surface, and form a gap with the second hole wall;

the mounting structure includes:

The inserting part is arranged on the backrest and the handrail and can be inserted into the inserting hole;

the everting protrusions extend outwards obliquely along two sides of the bottom of the plug-in connection part to form an airfoil structure; when the inserting portion is inserted into the inserting hole, the top end of the everting protrusion is abutted to the step surface, and the side edge of the everting protrusion is clamped into the gap between the limiting clamping point and the second hole wall to form interference fit.

In some embodiments of the present application, the plug portion includes:

the column structure is arranged at the ends to be connected on the backrest and the armrest, has a size capable of being inserted into the inserting holes and extends along the direction away from the backrest and the armrest;

the shovel-shaped structure is formed by obliquely extending the bottom end of the cylinder structure to the direction matched with the step surface, and the everting bulges are arranged on two sides of the shovel-shaped structure.

In some embodiments of the present application, the rear surface of the spade structure is provided as a mating guide slope formed by the lower edge of the cylinder structure extending obliquely in a direction mating with the step surface.

In some embodiments of the present application, the depth of the hole wall of the plug hole on the side of the step surface, that is, the third hole wall, is less than or equal to the depth of the first hole wall;

The upper end of the plugging guide inclined plane is provided with a transverse limiting protrusion, and when the plugging part is inserted into the plugging hole, the limiting protrusion is in clamping connection with the edge of the third hole wall.

The mounting structure and the cushion are integrally formed, and the mounting hole structure and the backrest or the armrest are integrally formed.

In some embodiments of the present application, the nursing seat further comprises a plurality of support legs, wherein the lower surface of the seat cushion is provided with mounting screw holes for mounting the support legs, and the mounting screw holes are connected with the support legs through threads.

In some embodiments of the present application, the mounting screw hole includes a threaded locking structure and a spacing deck.

In some embodiments of the present application, the supporting leg one end has the screw thread head, one side of the root plane of screw thread head is provided with location structure, spacing platform's outside is provided with two joint archs, a clearance has between two joint archs, location structure but the joint is spacing in order to carry out threaded connection in the clearance.

In some embodiments of the present application, the supporting legs are set to different lengths, and when the length of the supporting legs is greater than a preset length, the middle portion of the supporting leg is provided with a through hole structure for connecting the two supporting legs.

In some embodiments of the present application, the support leg has an elastic anti-slip foot pad that can be automatically leveled, the elastic anti-slip foot pad rotatably sleeved at the bottom end of the support leg, and the elastic anti-slip foot pad has a support plane that contacts the ground.

In some embodiments of the present application, the bottom of the seat cushion is provided with a first force supporting piece arranged at the rear part of the seat cushion and close to two sides of the backrest mounting hole structure, and a second force supporting piece and a third force supporting piece respectively arranged at the periphery of the bottom of the seat cushion; the second and third force-applying supports are symmetrically disposed along a central axis of the seat cushion, respectively, and the first, second and third force-applying supports are formed as a convex structure as a highest portion of a bottom of the seat cushion and on the same plane so as to form a stable planar support for the seat cushion.

In some embodiments of the present application, the backrest is provided with a connection hole, and one or more inflatable or elastic waist support members are detachably mounted on the connection hole.

In some embodiments of the present application, the waist support comprises:

the main body is provided with a stress surface, the main body is provided with fold structures, and the width between the fold structures is adjusted by the stress;

The connecting piece is arranged on one side of the main body, a buckling structure is arranged at one end, far away from the main body, of the connecting piece, and the buckling structure is buckled and connected with a through hole arranged on the backrest.

In some embodiments of the present application, the fastening structure includes a supporting portion connected to the main body and a fixing tail disposed on the supporting portion, where a width of the fixing tail is greater than a width of a portion of the supporting portion connected to the fixing portion, so as to form a fastening portion; the width of connecting hole upper portion is greater than the width of fixed tail on the back, and the width of connecting hole lower part is less than the width of fixed tail.

In some embodiments of the present application, a positioning portion is disposed on a surface of the fixing tail facing the main body, and the positioning portion is a protrusion structure disposed on a surface of the fixing tail; a plurality of positioning grooves are vertically arranged on the side wall of the lower portion of the connecting hole at intervals, and the positioning grooves are matched with the positioning portions to position and adjust the height of the waist support.

Compared with the prior art, the beneficial effect of this application lies in:

1. the utility model provides a special function cushion, its bottom can install and collect the box, can be used to the nursing field, collects box and cushion and can dismantle the connection simultaneously, be convenient for handle and clean;

2. The collecting box is of an integrally formed structure, and the upper cover structure and the lower box structure are formed through cutting, so that the collecting box can be integrally covered in a state of not needing the collecting box, and a flat upper surface of the seat is formed;

3. the nursing seat provided by the application is provided with a seat capable of collecting excrement and can be used for daily nursing of patients with mobility impairment and the like;

4. according to the nursing seat, the rapid bare-handed disassembly of each part is realized by arranging the connecting structure, so that the nursing seat can be expanded according to the use situation, and the variability and flexibility of the nursing seat are improved;

5. the nursing seat provided by the application improves the comfort of the use of the seat by arranging the compression type waist support and the expansion type waist support.

Drawings

Fig. 1 is a schematic structural diagram of a mounting hole structure in a top view according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a mounting hole structure in a bottom view according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a mounting structure according to an embodiment of the present disclosure;

fig. 4 is a second schematic structural diagram of the mounting structure according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a mounting hole structure and a mounting structure after plugging according to an embodiment of the present application;

FIG. 6 is a perspective view of a legless seat provided in an embodiment of the present application;

FIG. 7 is a side view of a legless seat provided in an embodiment of the present application;

FIG. 8 is a schematic structural view of a single backrest seat provided in an embodiment of the present application;

FIG. 9 is a schematic view of a dual backrest seat provided in an embodiment of the present application;

FIG. 10 is a schematic view of a armchair according to an embodiment of the present application;

FIG. 11 is a perspective view of a nursing seat provided in an embodiment of the present application;

FIG. 12 is a rear view of a nursing seat provided in an embodiment of the present application;

FIG. 13 is a top view of a nursing seat provided in an embodiment of the present application;

FIG. 14 is a side view of a nursing seat provided in an embodiment of the present application;

FIG. 15 is a schematic view of another nursing seat according to an embodiment of the present disclosure;

FIG. 16 is a top view of a first seat cushion provided in an embodiment of the present application;

FIG. 17 is a bottom view of a first seat cushion provided in an embodiment of the present application;

fig. 18 is a perspective view of a first seat cushion provided in an embodiment of the present application;

FIG. 19 is a top view of a second seat cushion provided in an embodiment of the present application;

FIG. 20 is a bottom view of a second seat cushion provided in an embodiment of the present application;

FIG. 21 is a top view of a third seat cushion provided in an embodiment of the present application;

FIG. 22 is a bottom view of a third seat cushion provided in an embodiment of the present application;

FIG. 23 is a front view of a third seat cushion provided in an embodiment of the present application;

fig. 24 is a rear view of a third seat cushion provided with a collection box provided in an embodiment of the present application;

FIG. 25 is a perspective view of a collection cassette provided in an embodiment of the present application;

FIG. 26 is a front view of a backrest provided in an embodiment of the present application;

FIG. 27 is a side view of a backrest provided in an embodiment of the present application;

FIG. 28 is a front view of a handrail provided by an embodiment of the present application;

FIG. 29 is a side view of a handrail provided by an embodiment of the present application;

FIG. 30 is a schematic view of a support leg provided in an embodiment of the present application;

fig. 31 is a perspective view of an inflatable lumbar support provided in an embodiment of the present application;

fig. 32 is a side view of an inflatable lumbar support provided in an embodiment of the present application;

FIG. 33 is a rear view of an inflatable lumbar support provided in an embodiment of the present application;

FIG. 34 is a top view of an inflatable lumbar support provided in an embodiment of the present application;

fig. 35 is a perspective view of a compression lumbar support provided in an embodiment of the present application;

fig. 36 is a front view of a compression lumbar support provided in an embodiment of the present application;

fig. 37 is a side view of a compression lumbar support provided in an embodiment of the present application;

Fig. 38 is a rear view of a compression lumbar support provided in an embodiment of the present application;

FIG. 39 is a top view of a compression lumbar support provided in an embodiment of the present application;

fig. 40 is a perspective view of a backrest provided with an inflatable lumbar support according to an embodiment of the present application;

fig. 41 is a rear view of a backrest provided with an inflatable lumbar support according to an embodiment of the present application;

fig. 42 is a perspective view of a backrest provided with a compression lumbar support according to an embodiment of the present application;

fig. 43 is a rear view of a backrest provided with a compression lumbar support according to an embodiment of the present application;

fig. 44 is a perspective view of a backrest provided with an inflatable lumbar support and compressible lumbar support combination according to an embodiment of the present application;

1. a body member; 101. a first body member; 102. a second body member; 11. a bottom plane;

2. a mounting hole structure; 21. a plug hole; 211. a first aperture wall; 212. a second aperture wall; 22. a step surface; 213. a third hole wall; 23. limiting the clamping point;

3. a mounting structure; 31. a plug-in part; 311. a column structure; 3111. a force-bearing plane; 312. a shovel structure; 3121. an inclined plane for insertion guiding; 3122. a limit protrusion; 32. an everting protrusion;

4. a cushion; 41. a first force support; 42. a second force support; 43. a third force support; 44. a support leg fixing structure; 441. installing a screw hole; 4411. a thread locking structure; 4412. a limiting platform; 4413. the clamping bulge; 45. a drainage through hole; 401. a first seat cushion; 4011. a convex structure; 402. a second seat cushion; 403. a third seat cushion; 4031. a seating surface; 4032. a through hole; 4033. a support structure; 4034. an accommodating space; 4035. a protruding limit rail;

5. A backrest; 51. a connection hole; 511. the upper part of the connecting hole; 512. the lower part of the connecting hole; 52. a positioning groove;

6. an armrest;

7. support legs; 71. a first support leg; 72. a second support leg; 73. a third support leg; 74. a fourth support leg; 701. a via structure; 702. an elastic anti-slip foot pad; 7021. a support plane; 703. a thread head; 704. a positioning structure;

8. a collection box; 81. an upper cover structure; 82. a lower box structure; 83. a groove; 84. a first handle; 85. a second handle; 86. a wave-proof groove;

9. a waist support member; 91. a main body; 911. a force-bearing surface; 912. a pleated structure; 9121. a first annular trench structure; 9122. a second annular trench structure; 92. a connecting piece; 93. a buckle structure; 931. a support part; 932. fixing the tail; 933. a positioning part; 94. an air inlet nozzle; 901. expansion waist support; 902. compression type waist support.

Detailed Description

The following detailed and complete description of the technical solutions in the specific embodiments of the present application will be given with reference to the accompanying drawings. It is apparent that the described embodiments are only some specific implementations, but not all implementations, of the general technical solutions of the present application. All other embodiments, which can be made by those skilled in the art based on the general inventive concept, are intended to fall within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it is understood that the "upper surface" of the seat cushion refers to the seating surface for the user to sit on; the "lower surface" of the seat cushion refers to the surface of the other side opposite to the "upper surface".

The terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third", and "a fourth" may explicitly or implicitly include one or more such feature.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The application is further described with reference to the accompanying drawings and examples:

example 1

Embodiment 1 of the present application provides a connection structure, which can be used for detachable connection of two main body pieces to be connected, and the connection structure includes:

and the mounting hole structure 2 and the mounting structure 3 are correspondingly arranged on the two main body pieces 1 to be connected.

As shown in fig. 1 and 2, the mounting hole structure 2 includes:

a plug hole 21, which is formed in one of the main body members 1, i.e., the first main body member 101, and extends toward the inside of the first main body member 101; the plug hole 21 can penetrate through the first main body piece 101;

a step surface 22 formed on a hole wall of the plug hole 21 and dividing the hole wall into a first hole wall 211 and a second hole wall 212 by the step surface 22; the second hole wall 212 is on the same side as the step surface 22 and enlarges the size of the plug hole 21 relative to the first hole wall 211;

two limiting snap points 23 formed on both sides of the second hole wall 212, protruding oppositely in a direction parallel to the step surface 22, and forming a gap with the second hole wall 212.

As shown in fig. 3 to 5, the mounting structure 3 includes:

a plug-in portion 31 provided on the other body member 1, i.e., the second body member 102, and insertable into the plug-in hole 21;

The everting protrusions 32 extend obliquely outwards along the two sides of the bottom of the plug-in part 31 to form an airfoil structure; when the plugging portion 31 is inserted into the plugging hole 21, the top end of the everting protrusion 32 abuts against the step surface 22, and the side edge of the everting protrusion 32 is clamped into the gap between the limiting clamping point 23 and the second hole wall 212 to form interference fit.

The embodiment provides a simple connection structure, through set up mounting hole structure 2 and mounting structure 3 respectively on two main part pieces 1 that wait to connect, when needs are connected two main part pieces 1, only need insert mounting structure 3's grafting portion 31 in mounting hole structure 2's grafting hole 21, the protruding 32 joint of valgus realizes the stable connection and the quick assembly disassembly to two main part pieces 1 between step face 22 and spacing stuck point 23. It will be appreciated that only a portion of the first body member 101 and the second body member 102 are shown in fig. 1-5, as the configuration of the first body member 101 and the second body member 102 is not limited.

Further, as shown in fig. 3 and 4, the plug-in portion 31 includes:

a column structure 311 disposed at the to-be-connected end of the second body member 102, having a size that can be inserted into the insertion hole 21 and extending in a direction away from the second body member 102; generally, the width of the pillar structure 311 is slightly smaller than the width between the first hole wall 211 and the opposite hole wall so that the pillar structure 311 is smoothly inserted into the plugging hole 21;

The shovel structure 312 is formed by extending the bottom end of the column structure 311 obliquely to the direction matching with the step surface 22, and the everting protrusions 32 are arranged on both sides of the shovel structure 312.

When the mounting structure 3 is inserted into the mounting hole structure 2, the shovel structure 312 is located at the second hole wall 212 of the plug hole 21, the top end of the everting protrusion 32 is in contact fit with the step surface 22, and the side edge of the everting protrusion 32 is matched with the limiting clamping point 23, so that quick connection and disassembly between two main body pieces 1 to be connected are realized.

The rear surface of the spade structure 312, i.e. the surface facing away from the step surface 22 after insertion, is configured as an insertion guiding inclined surface 3121, the insertion guiding inclined surface 3121 is formed by the lower edge of the column structure 311 extending obliquely to the direction of mating with the step surface 22, and the insertion guiding inclined surface 3121 forms a wedge-shaped effect with the stress plane 3111 of the mounting structure connected to the front side of the spade structure.

It will be appreciated that since the everting protrusions 32 provided on both sides of the spade structure 312 are required to be in abutting engagement with the step surface 22, the everting protrusions 32 are necessarily protruded in the width direction with respect to the column structure 311, and if the insertion of the insertion portion 31 into the insertion hole 21 is vertically made impossible, thereby providing the insertion guiding inclined surface 3121 to guide the insertion portion 31 to be inserted into the insertion hole 21 obliquely along the insertion guiding inclined surface 3121, and smoothly guiding the insertion of the spade structure 312 and the everting protrusions 32 into the insertion hole 21. When the second body member 102 receives the outward pushing force, the column structure 311 naturally descends under the guiding of the insertion guiding inclined surface 3121, and pushes the sides of the everting protrusions 32 at both sides of the shovel structure 312 past the limiting snap points 23 and forms an interference fit.

Further, as shown in fig. 2, the depth of the hole wall of the plug hole 21 on the opposite side of the step surface 22, that is, the third hole wall 213, is less than or equal to the depth of the first hole wall 211;

as shown in fig. 4, a lateral limit protrusion 3122 is disposed at the upper end of the insertion guiding inclined surface 3121, and when the insertion portion 31 is inserted into the insertion hole 21, the limit protrusion 3122 is engaged with an edge of the third hole wall 213, thereby further limiting the mounting structure 3.

Optionally, the mounting structure 3 and the mounting hole structure 2 are integrally formed with the body member 1 correspondingly connected with the mounting structure and the mounting hole structure; that is, the mounting hole structure 2 and the first body member 101 are integrally formed, and the mounting structure 2 and the second body member 102 are integrally formed.

Specifically, the insertion holes 21 of the mounting hole structure 2 may be provided as rectangular holes, and accordingly, the column structure 311 of the mounting structure 3 is provided as a rectangular column structure.

Example 2

Based on the connection structure provided in embodiment 1, as shown in fig. 6-15, this embodiment provides a expandable seat, including: a plurality of the connecting structures described in embodiment 1, the seat cushion 4 (see fig. 16 to 23), and the backrest 5 (see fig. 26, 27), by which the backrest 5 is detachably connected to the seat cushion 4.

Further, the seat further includes an armrest 6 (see fig. 28, 29), and the armrest 6 is detachably connected to the seat cushion 4 by the connecting structure described in embodiment 1.

Further, the seat further includes a plurality of support legs 7 (see fig. 30).

Specifically, the expandable seat provided in this embodiment includes:

a seat cushion 4, wherein a plurality of mounting hole structures 2 are arranged on the surface of the seat cushion 4;

at least one backrest 5, the backrest 5 is detachably connected with the mounting hole structure 2 on the cushion 4 through the backrest mounting structure 3 arranged at the lower part of the backrest 5, and when an outward acting force is applied to the backrest 5, the mounting hole structure 2 is buckled with the backrest mounting structure 3; when an inward acting force is applied to the backrest 5, the mounting hole structure 2 is separated from the backrest mounting structure 3, so that the backrest 5 and the seat cushion 4 are quickly connected and detached;

at least one armrest 6, the armrest 6 is detachably connected with the mounting hole structure 2 on the cushion 4 through an armrest mounting structure 3 arranged at the lower part of the armrest 6, and when an outward acting force is applied to the armrest 6, the mounting hole structure 2 is buckled with the armrest mounting structure 3; when an inward force is applied to the armrest 6, the mounting aperture arrangement 2 disengages from the armrest mounting arrangement 3, allowing for quick connection and disconnection between the armrest 6 and the seat cushion 4.

It will be appreciated that the mounting hole structure 2 on the surface of the seat cushion 4 is disposed corresponding to the position where the backrest 5 or the armrest 6 is to be mounted, and is generally disposed on the outer peripheral side of the surface of the seat cushion 4; the above-described "outboard" or "inboard" application of force is described with respect to a user sitting on the seat.

The seat cushion 4 and other parts, such as the backrest 5, the armrest 6 and the like, are quickly assembled and disassembled through the matching of the mounting hole structure 2 and the mounting structure 3, so that the seat cushion can be structurally deformed and expanded according to the needs and the favorites of users, has better flexibility and is more suitable for different crowds. Alternatively, the backrest 5 and the armrest 6 in the present embodiment are molded in one piece by a blow molding process.

The specific structures of the mounting hole structure 2 and the mounting structure 3 used in the seat provided in this embodiment are the same as those in embodiment 1, and will not be described here again.

The process of the mutual matching of the mounting structure 3 at the lower part of the backrest 5 or the armrest 6 and the mounting hole structure 2 on the surface of the cushion 4 is as follows: when the armrest 6 or the backrest 5 is pushed to the outer side of the seat cushion 4 in the use state, the plugging part 31 naturally descends under the guidance of the plugging guide inclined plane 3121 and pushes the side edges of the eversion protrusions 32 at the two sides of the shovel structure 312 through the limit clamping points 23 in the plugging holes 21 to form interference fit, and meanwhile, the transverse limit protrusions 3122 of the plugging guide inclined plane 3121 and the edge of the third hole wall 213 of the plugging holes 21 contacted with the transverse limit protrusions 3122 form limit clamping to form a state of difficult falling; meanwhile, the stress plane 3111 of the column structure 311, the handrail 6 or the bottom plane 11 of the backrest 5 are respectively matched with the hole wall of the plug hole 21 of the cushion 4 and the contact surface of the periphery of the plug hole 21 on the upper surface of the cushion 4 to be stressed, so that a stable supporting structure is formed. When the pushing force is applied to the armrests 6 or the backrest 5 in the reverse direction, namely, in the direction of the inner side of the cushion 4, the eversion protrusions 32 on the two sides of the shovel structure 312 are naturally separated from the matching relation with the limiting clamping points 23 in the inserting holes 21, so that the state that the armrests 6 or the backrest can be pulled out with upward force is formed.

Further, as shown in fig. 17, the bottom of the seat cushion 4 has first force supporting pieces 41 provided on both sides of the rear portion of the seat cushion 4 near the back mounting hole structure 2, and second force supporting pieces 42 and third force supporting pieces 43 provided around the bottom of the seat cushion 4, respectively; the second and third force-applying supports 42 and 43 are symmetrically disposed along the central axis of the seat cushion 4, respectively, and the first, second and third force-applying supports 41, 42 and 43 are formed as a convex structure as the highest portion of the bottom of the seat cushion 4 and on the same plane to form a stable planar support for the seat cushion 4. With the above structure, a legless seat form can be realized.

Further, the seat may further include a plurality of support legs 7, and the bottom of the seat cushion 4 is provided with a support leg fixing structure 44 for mounting the support legs 7. The support legs 7 may be installed at the lower portion of the seat cushion 4 as needed.

It will be appreciated that the structure of the support leg securing structure 44 does not affect the function of the first, second and third force supports 41, 42, 43, i.e. the force supports are higher than the support leg securing structure so that the component in contact with the ground is always a force support.

As shown in fig. 17, 20 and 22, the support leg fixing structure 44 includes a mounting screw hole 441 provided at the lower surface of the seat cushion 4, the mounting screw hole 441 being screwed to the support leg 7. The mounting screw hole 441 includes a screw locking structure 4411 and a limiting platform 4412. The screw locking structure 4411 is a screw structure arranged on the inner surface of the mounting screw hole 441; the limiting platform 4412 is a protruding plane arranged around the mounting screw holes 441 on the lower surface of the seat cushion 4, and is used for limiting the screwing depth of the supporting legs 7.

The support leg 7 has a threaded head 703 at one end, which threaded head 703 is capable of mating with a threaded locking structure 4411 of the seat cushion 4.

Further, as shown in fig. 30, a positioning structure 704 is provided on one side of the root plane of the threaded head 703, two clamping protrusions 4413 are provided on the outer side of the limiting platform 4412, a gap is provided between the two clamping protrusions 4413, and the positioning structure 704 can be clamped in the gap to limit the threaded connection. When the supporting leg 7 is installed, the threaded head 703 of the supporting leg 7 is screwed into the threaded locking structure 4411 until the root plane of the threaded head 703 is in contact with the limiting platform 4412, and the positioning structure 704 is continuously screwed inwards so as to form a physical limit in a gap between the two clamping protrusions 4413, thereby ensuring that the threaded connection of the supporting leg 7 cannot be loosened even if the seat is rotated or moved.

According to the preferred technical scheme, the supporting legs 7 are arranged to be different in length, the supporting legs 7 of different lengths are provided with screw heads 703 of the same size, the universality of a screw connection structure is improved, and the supporting legs 7 of different heights can be replaced according to the needs, so that the transformation of seats of different heights is realized.

Further, when the length of the support leg 7 is greater than the preset length, the middle portion of the support leg 7 is provided with a through hole structure 701. After the supporting legs 7 are installed on the seat, the through hole structure 701 can be used for realizing connection between the supporting legs, so that the condition that the supporting legs are outwards opened under the condition that the weight of a user is large is effectively prevented, and the stability of the seat is improved. There are various specific connection modes, for example, connection between adjacent support legs 701 is possible, and connection between two support legs 701 on a diagonal line is also possible.

Further, the support legs 7 are provided with elastic anti-slip foot pads 702 which can be automatically leveled. The elastic anti-slip foot pad 702 is rotatably sleeved at the bottom end of the supporting leg 7, the elastic anti-slip foot pad 702 is provided with a supporting plane 7021 contacted with the ground, and the elastic anti-slip foot pad 702 can automatically rotate to a corresponding position according to the contact between the supporting plane 7021 and the ground in the use process of the seat, so that the automatic leveling function is realized.

As shown in fig. 30, specifically, the support leg 7 includes first, second, third and fourth support legs 71, 72, 73 and 74 of different lengths. The other ends of the first, second, third and fourth support legs 71, 72, 73 and 74 have elastic anti-slip foot pads 702 capable of fine-tuning angles. The middle sections of the third support leg 73 and the fourth support leg 74 are provided with through hole structures 701 which are integrally formed, and the support legs 73 and 74 are high, so that the two adjacent support legs 73 and 74 can be connected and fixed by other means through the through hole structures 701.

In the above embodiment, the leg fixing structure 44 at the bottom of the seat cushion 4 can realize the free change of the legless chair and the legged chair, realize the selective disassembly and assembly of the supporting legs 7 with different heights, and ensure the stability and the bearing safety of the seat in any state; simultaneously, the backrest 5 and the armrests 6 can be selectively installed by matching with the installation hole structure 2 of the cushion 4, so that different combination states of the cushion 4 and other parts are realized, and the selective, simple one-step installation and disassembly of all the parts and stable and reliable connection are realized.

The cushion 4 in the seat can be formed integrally by blow molding, and can be used alone or by mounting the supporting legs 7 at the lower part, and can also be provided with the backrest 5 or the armrest 6 to form a single backrest, double backrest or four backrest annular structure. The supporting legs 7 can be installed at different heights, and the structure can be used in the situations of outdoor, nursing, daily living, tent, camping, kang, tatami, ground and the like.

Preferably, the seat cushion 4, the backrest 5, the armrests 6 and the support legs 7 are all provided as hollow structures which are integrally blow-molded.

The seat is formed by blow molding, and the integrated molding thereof includes the seat cushion 4, the peripheral mounting hole structure 2 for mounting the armrest 6 and the backrest 5, and the leg fixing structure 44 for mounting the leg 7 on the bottom surface.

Specifically, various expanded forms of the expandable seat are described below in connection with two different structural forms of the seat cushion 4.

A first seat cushion 401 as shown in fig. 16 to 18, the rear side of the upper surface of the first seat cushion 401 is provided with a raised structure 4011, and the raised structure 4011 cooperates with the mounting backrest 5 to provide a higher backrest use height; the bottom of the seat cushion 4 is provided with the ground-contacting supports 41, 42, 43, and the lower planes of the ground-contacting supports 41, 42, 43 are lower than the outermost lower planes of the mounting screw holes 441.

Fig. 6 and 7 are a perspective view and a side view, respectively, of the legless seat according to the present embodiment, based on the structure of the first seat cushion 401. The legless seat comprises a backrest 5 and armrests 6 mounted on a first seat cushion 401, which makes use of the first traction support 41 so that the entire seat does not topple as the backrest 5 is leaned against when used on the ground or a bed surface.

As shown in fig. 8, a stool or chair having different height uses can be formed by installing support legs having different lengths under the above-mentioned legless seat.

Fig. 19 and 20 are bottom and top views of a second seat cushion 402 according to the present embodiment, and the rear portion of the second seat cushion 402 has two mounting hole structures 2; the second seat cushion 402 is also provided with mounting hole structures 2 on both sides, respectively.

As shown in fig. 9, for the second seat cushion 402, the backrest 5 may be mounted in the two mounting hole structures 2 at the rear, and the armrests 6 may be mounted in the mounting hole structures 2 at both sides, forming a double-backrest chair; alternatively, as shown in fig. 10, the armrests 6 may be replaced with the backrest 5 to form a round-backed chair. The support legs 7 may alternatively be mounted or not mounted for double back and round-backed chairs.

The above-mentioned two back combined design of second cushion 402 can be better provide the support of waist and waist both sides, also can replace two armrests to form the round-backed armchair simultaneously, realizes more firm upper body supporting effect through the combination of four backs.

The first seat cushion 401 and the second seat cushion 402 have drainage through holes 45 penetrating the front and rear surfaces.

Example 3

Figures 21-24 are perspective, bottom and rear views of a third seat cushion 403 provided in an embodiment of the present application. The third seat cushion 403 includes:

A seating surface 4031;

a through hole 4032 formed in the middle of the seat 4031; alternatively, the through hole 4031 has a larger dimension in the length direction than in the width direction of the seating surface 4031;

a supporting structure 4033 disposed at the lower portion of the through hole 4032, wherein the supporting structure 4033 and the seat 4031 form a containing space 4034; optionally, the support structure 4033 is integrally formed with the seating surface 4031;

the collection box 8 is detachably accommodated in the accommodation space 4034.

Preferably, as shown in fig. 25, the collecting box 8 includes an upper cover structure 81 and a lower box structure 82 having a collecting cavity, and the upper cover structure 81 and the lower box structure 82 are fastened together. Specifically, the collecting box 8 is formed by cutting after one blow molding. Preferably, when the collecting box 8 is placed in the accommodating space 4034, the upper cover structure 81 is flush with the seating surface 4031 of the third seat cushion 403 to ensure comfort in use.

In practical application, the accommodating space 4034 with the two ends open and recessed downwards can be formed on the central axis of the third cushion 403, the adapted collecting box 8 can be fixedly installed in the accommodating space 4034, the upper edge of the accommodating space 4034, which is connected with the third cushion 403, is designed into a side leakage preventing structure extending obliquely into the accommodating space 4034, the side leakage preventing structure can be matched with the upper cover structure 81 of the collecting box 8, and after the upper cover structure 81 of the collecting box 8 is installed on the third cushion 403, a consistent seat surface is formed with the seat surface 4031 of the third cushion 403, so that the comfort degree in use is ensured.

Further, the supporting structure 4033 is provided with protruding limit rails 4035 at two sides inside the accommodating space 4034; correspondingly, grooves 83 matched with the convex limit rails 4035 are formed on the two sides of the collecting box 8 at positions corresponding to the convex limit rails 4035; the collecting box 8 is guided in the accommodating space 4034 by the matching of the groove 83 and the convex limiting rail 4035.

Further, one end of the lower box structure 82 is provided with a first handle 84. Specifically, the collecting box 8 is integrally formed, and has an integrally formed first handle 84 and an integrally formed upper cover structure 81, and after the upper cover structure 81 is separated from the lower box structure 82 of the collecting box 8 by cutting means, the upper cover structure 81 can be mounted on the lower box structure 82 or on the top of the through hole 4032 of the third cushion 403 and form a unified seat surface with the upper surface of the seat surface 4031.

Further, the top of the upper cover structure 81 has a second handle 85 formed at one time to facilitate opening and closing of the upper cover structure 81.

Alternatively, as shown in fig. 24 and 25, the upper portions of both sides of the lower case structure 82 have wave-preventing grooves 86 protruding toward the inside of the collecting case 8 (the outside shows a concave shape). The purpose is that when the liquid is contained in the collection box 8, the sloshing of the liquid surface during the carrying process is prevented or disturbed by the wave preventing groove 86, so that the liquid is prevented from splashing.

The third seat cushion 403 with the collecting box 8 provided in this embodiment can be used in various nursing seats. It will be appreciated that the surface of the third seat cushion 403 may also be provided with a plurality of mounting hole arrangements 2 and that various different forms of seating may be formed by detachably connecting the components of the seating by means of the connecting arrangement described in example 1 in accordance with the scheme of example 2. The specific structure of the connection structure and the connection manner of each component are referred to embodiment 1 and embodiment 2, and are not described herein.

Fig. 11-14 are schematic diagrams of the assembly of the third seat cushion 403 in the embodiment of the present application, and the third seat cushion 403 is assembled together with two armrests 6, two backrests 5, four support legs 7, a collection box 8, and a collection box upper cover structure 81. Alternatively, as shown in fig. 15, two armrests 6 may be replaced with a backrest 5 to form a bouncer.

Example 4

As shown in fig. 40-44, the present embodiment provides a backrest with a lumbar support. As shown in fig. 26, the backrest 5 is vertically provided with a connection hole 51 for providing the lumbar support 9. As shown in fig. 31 to 39, the waist support 9 includes:

a main body 91, the main body 91 has a stress surface 911, which is a surface for a user to lean against, the main body 91 is provided with a fold structure 912, and the position of the stress surface 911 in the stress direction is changed by changing the width of the fold structure 912;

The connecting piece 92 is arranged on one side of the main body 91, the connecting piece 92 is provided with a buckling structure 93 at one end far away from the main body, and the connecting piece 92 is buckled and connected with the connecting hole 51 of the backrest 5 through the buckling structure 93.

Further, the fastening structure 93 includes a supporting portion 931 connected to the main body 91 and a fixing tail 932 disposed on the supporting portion 931, and the width of the fixing tail 932 is greater than the width of the portion of the supporting portion 931 connected to the fixing tail 932, so as to form a fastening portion. The fixing tail 932, the supporting portion 931, and the surface of the main body 91 on the same side as the fastening structure 93 form an "i" shaped fastening structure that mates with the connection hole 51 on the backrest 5.

Further, a positioning portion 933 is provided on a surface of the fixed tail 932 facing the main body 91, and the positioning portion 933 is a convex structure provided on the surface of the fixed tail 932.

Further, the main body 91 and the connecting member 92 are hollow structures integrally formed by blow molding, the connecting member 92 is provided with an air inlet nozzle 94, and the air inlet nozzle 94 can be used for charging and discharging air into the main body to adjust the width of the fold structure 912.

Further, the periphery of the main body 91 is provided with an arc, and a surface of the main body 91 away from the connecting piece 92 is provided with a plane with an arc.

Specifically, the width of the upper portion 511 of the connection hole 51 on the backrest 5 is greater than the width of the fixed tail 932 and the width of the lower portion 512 is smaller than the width of the fixed tail 932, so that the fixed tail 932 of the fastening structure 93 can smoothly pass through the connection hole 51 from the upper portion 511 of the connection hole 501 and move to the connection hole lower portion 512 to be fastened at the corresponding position.

Further, a plurality of positioning grooves 52 are vertically and alternately arranged on the side wall of the lower portion 512 of the connecting hole, and the positioning grooves 52 cooperate with the positioning portions 933 on the fixing tails 932 to position and adjust the height of the waist support 9. It is understood that the positioning portions 933 are symmetrically disposed at two sides to be engaged with the positioning grooves 52 on two sidewalls, respectively.

In one embodiment, as shown in fig. 31 to 34, the waist support 9 is an inflatable waist support 901, and a specific structure of the inflatable waist support 901 is described below.

The fold structure 912 of the inflatable lumbar support 901 includes a first annular channel-back structure 9121 and a second annular channel-back structure 9122 disposed on the bearing surface 911. When the inflatable waist support 901 is inflated, the first annular groove back structure 9121 and the second annular groove back structure 9122 will expand, so that the inflatable waist support 901 expands to form a supporting structure on one side in the forward direction (opposite to the force bearing direction); the pleated structure is formed by a single-sided inflation of the annular fluted back structure by inflation of the inlet nozzle 62. The width between the pleat structures 912 is varied by adjusting the amount of intake air to adjust the elasticity.

The fastening structure 93 includes a supporting portion 931 disposed on the top of the main body 91 and a fixing tail 932 disposed on the supporting portion 931, and the width of the fixing tail 932 is greater than the width of the portion of the supporting portion 931 connected to the fixing tail 932.

Specifically, the support portion 931 extends obliquely upward from the top of the main body 91 in a direction away from the force receiving surface 911 and a plane in which the fixing tail 932 is located is substantially parallel to the force receiving surface 911; the side surface of the fixed tail 932 facing the main body 91 is provided with a convex positioning portion 933; the fixing tail 932 and the supporting portion 931 and the surface of the main body 91 on the same side as the fastening structure 93 form an "i" shaped fastening structure.

Further, an air inlet nozzle 94 is provided at the top end of the fixed tail 932, and the air inlet nozzle 94 can be used for inflating and deflating the main body 91 to adjust the width of the fold structure 912. The thickness of the expansion waist support can be changed by inflating through a manual air pump or an electric air pump, so that the support condition can be changed.

In another embodiment, as shown in fig. 35-39, the waist support 9 is a compression waist support 902. The specific structure of the compression lumbar support 902 will be described below.

The fold structure 912 of the compression lumbar support 902 is a four-side stacked fold provided in the force receiving direction, and can be compressed and rebound after the force receiving surface 911 receives a force. The compression type lumbar support 902 is generally configured to have a certain pressure inside by filling a certain amount of air into the main body 91 in advance, and to achieve pressure deformation and elastic support by the fold structure 912 when a user leans against the compression type lumbar support 902 during use.

The fastening structure 93 includes a support portion 931 disposed at a rear portion (i.e., a side away from the force receiving surface) of the main body 91 and a fixing tail 932 disposed on the support portion 931, and a width of the fixing tail 932 is greater than a width of a portion of the support portion 931 connected to the fixing tail 932. Specifically, in the present embodiment, the portion where the support portion 931 is connected to the fixed tail 932 is recessed inward to form a snap-fit portion. The fixing tail 932, the supporting portion 931, and the surface of the main body 91 on the same side as the fastening structure 93 form an "i" shaped fastening structure that mates with the connection hole 51 on the backrest 5.

Further, a convex positioning portion 933 is provided on the surface of the fixed tail 932 facing the main body 91 to position and adjust the height of the lumbar support 9 in cooperation with the positioning groove 52 on the backrest 5.

Alternatively, two or more of the above-described inflatable lumbar support 901 or the compression lumbar support 902, or a combination of the inflatable lumbar support 901 and the compression lumbar support 902 may be detachably mounted on one backrest 5, thereby increasing comfort.

Claims

1. A seat cushion, comprising:

a seating surface;

the through hole is formed in the middle of the seat surface;

A collection box detachably accommodated in the accommodation space;

2. The cushion according to claim 1, wherein the collecting box is an upper cover structure and a lower box structure formed by cutting after one blow molding, and the upper cover structure and the lower box structure are buckled and connected.

3. A seat cushion as claimed in claim 2, wherein the upper cover structure of the collection box, when mounted on the seat surface, will provide consistent seat surface comfort with the seat surface during use.

4. A seat cushion as claimed in claim 3, wherein the lower box structure has wave-proof grooves protruding toward the inside of the collecting box at both side upper portions thereof.

5. A nursing seat comprising a seat cushion as defined in any one of claims 1-4, further comprising a backrest and/or armrests connected to said seat cushion.

6. The nursing seat as defined in claim 5, wherein a backrest and/or an armrest are detachably connected to the seat cushion by a connecting structure, the connecting structure including a mounting hole structure provided on the seat cushion and a mounting structure provided on the backrest and the armrest; wherein:

the mounting hole structure includes:

the mounting structure includes:

7. The nursing seat as defined in claim 6, wherein the plug portion includes:

8. The nursing seat as defined in claim 7, wherein the rear surface of the spade structure is provided as a mating guide ramp formed by a lower edge of the cylinder structure extending obliquely in a direction mating with the step surface.

9. The nursing seat as defined in claim 8, wherein the depth of the hole wall of the insertion hole on the step-facing side, i.e., the third hole wall, is less than or equal to the depth of the first hole wall;

the upper end of the plugging guide inclined plane is provided with a transverse limit bulge, when the plugging part is inserted into the plugging hole, the limit bulge is in clamping connection with the edge of the third hole wall,

10. The nursing seat as defined in claim 5, further comprising a plurality of support legs, wherein a lower surface of the seat cushion is provided with mounting screw holes for mounting the support legs, and wherein the mounting screw holes are connected to the support legs by threads.

11. The nursing seat of claim 10, wherein the mounting screw hole includes a threaded locking structure and a restraining platform.

12. The nursing seat as defined in claim 11, wherein one end of the supporting leg is provided with a threaded head, one side of a root plane of the threaded head is provided with a positioning structure, two clamping protrusions are arranged on the outer side of the limiting platform, a gap is formed between the two clamping protrusions, and the positioning structure can be clamped in the gap to limit threaded connection.

13. The nursing seat as defined in claim 10, wherein the supporting legs are provided with different lengths, and a through hole structure for connecting the two supporting legs is provided at a middle portion of the supporting legs when the length of the supporting legs is greater than a preset length.

14. The nursing seat as defined in claim 10, wherein the support leg has an elastic anti-slip foot pad capable of self-leveling, the elastic anti-slip foot pad rotatably sleeved at the bottom end of the support leg, the elastic anti-slip foot pad having a support plane in contact with the ground.

15. The nursing seat as defined in claim 6, wherein the seat bottom has a first force support disposed at a rear portion of the seat near both sides of the back mounting hole structure, and a second force support and a third force support disposed at a periphery of the seat bottom, respectively; the second and third force-applying supports are symmetrically disposed along a central axis of the seat cushion, respectively, and the first, second and third force-applying supports are formed as a convex structure as a highest portion of a bottom of the seat cushion and on the same plane so as to form a stable planar support for the seat cushion.

16. The nursing seat of claim 5 wherein the backrest is provided with an attachment aperture to which one or more inflatable or elastic lumbar support members are removably mounted.

17. The nursing seat as defined in claim 16, wherein the lumbar support includes:

18. The nursing seat as defined in claim 17, wherein the snap structure includes a support portion coupled to the main body and a securing tail disposed on the support portion, the securing tail having a width greater than a width of a portion of the support portion coupled to the securing portion to form a snap-fit portion; the width of connecting hole upper portion is greater than the width of fixed tail on the back, and the width of connecting hole lower part is less than the width of fixed tail.

19. The nursing seat as defined in claim 18, wherein a locating portion is provided on a surface of the fixed tail facing the main body, the locating portion being a raised structure provided on a surface of the fixed tail; a plurality of positioning grooves are vertically arranged on the side wall of the lower portion of the connecting hole at intervals, and the positioning grooves are matched with the positioning portions to position and adjust the height of the waist support.